Home / 39,420.20-59,152.98-21,888.56

Finding the Fourth Proportional to 39,420.20, 59,152.98 and 21,888.56

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Solution

The fourth proportional to 39,420.20, 59,152.98 and 21,888.56 is: 32,845.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.20 : 59,152.98 = 21,888.56 : x
  2. Step 2: Convert to fraction form
    39,420.20/59,152.98 = 21,888.56/x
  3. Step 3: Cross multiply
    39,420.20x = 59,152.98 × 21,888.56
  4. Step 4: Simplify right side
    39,420.20x = 1,294,773,551.91
  5. Step 5: Solve for x
    x = 1,294,773,551.91/39,420.20
  6. Step 6: Final answer
    x = 32,845.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.